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Founded in 1987, we are a non-profit, professional association for biomedical scientists interested in research involving the neurotransmitter serotonin (5-hydroxytryptamine).

Important ISSR 2020 Meeting Deadlines

Meeting Registration

Opens in January, 2020

Early Bird: March 15, 2020 (fees increase after March 15)

Regular: April 20, 2020 (fees increase after April 20)

Late: July 1, 2020

Due to our contract with the meeting venue,

registration fees will not be refunded after April 20, 2020


Abstract Submission

Opens in January, 2020

For short oral presentations: March 15, 2020

Notification of acceptance by mid-April;

abstracts accepted for short talks will also be programmed as a poster presentation

For poster presentation only: April 20, 2020



Reservations open in January, 2020

Deadline for the discounted room rates is April 20, 2020

The Marriott Resort in Cancun is a complex that includes two hotels (the Marriott Cancun and the JW Marriott Resort and Spa) along with 9 restaurants and numerous activities available on site.  We have a room block with discounted rates at both the Marriott Cancun ($185 per night) and the JW Marriott ($285 per night).

Note: rooms available at discount are limited

and we strongly encourage you to make reservations early!



Details for registration, abstract submission and lodging will be available soon



We look forward to seeing you in Cancún!

See our new In Memoriam page for tributes

to Drs. Paul M. Vanhoutte and Manfred Göthert

Join us in Cancún for our

20th International Meeting

in 2020!

“Serotonin on the Mexican Caribbean”

Marriott Cancún Resort 

Cancún, Mexico  


July 26-29, 2020

“Serotonin on the Mexican Caribbean”

Marriott Cancún Resort, Cancún, Mexico 

July 26-29, 2020


A note from members of the ISSR 2020 Organizing Committee:


The Mexican Caribbean and its incredible views and landscapes is one of the most visited regions in Mexico. Located in the State of Quintana Roo, the Mexican Caribbean is comprised of Cancun, Puerto Morelos, Riviera Maya (Playa del Carmen, Puerto Aventuras, Akumal, Tulum), Grand Costa Maya (Bacalar, Chetumal, Mahahual) and the Islands of Cozumel, Holbox and Isla Mujeres. The region features a myriad of fun-filled adventures and attractions, archaeological sites, delicious dining and of course relaxation on its stunning beaches. The turquoise blue color and transparency of its waters will leave you simply dazzled!

Cancun was originally home to the Maya people.  Spanish explorers arrived in the Yucatan Peninsula in the early 16th century and similar to other parts of the Caribbean, they brought disease with them that devastated the native population.  Remains of the Mayan culture can be found at nearby archaeological sites of Chichen Itza, Coba and Tulum.  Cancun faded into obscurity until late in the 20th century when, after realizing the potential of the area, the Mexican government built nine hotels on the edge of the Carribbean Sea (and the rest is history). Today, Cancun is a world-renowned vacation destination with white powdery sand beaches, crystal clear turquoise waters, and most importantly, warm and friendly Mexican hospitality. 

We are very pleased to host the 20th meeting of the ISSR “Serotonin on the Mexican Caribbean” in Cancun, Mexico, July 26-29, 2020 (note our “20th in 2020”).  We have secured an excellent meeting venue, the Marriott Cancun Resort, a complex that houses two hotels, 9 restaurants and numerous amenities and activities on site such that you may not want to leave the resort your entire time in Cancun. Also, we have contracted with International Incentive Travel, an onsite company that will handle ground transportation and all of your questions about the area, as well as bookings for various activities, tours and excursions, restaurant reservations and evening entertainment.  We have also begun to form the program; the ISSR Council has completed their selection of 2020 honorees for our named plenary lectures, and submission of symposium proposals for consideration for inclusion in the program is now open. You will also find a list of deadlines on the 2020 meeting page (e.g. registration, abstract submission, hotel reservations, etc), so please make notes on your calendar about these important dates. We will be updating this website continually as new information and details become available.

Bienvenidos a Mexico Lindo!

(We look forward to welcoming you to beautiful Mexico!)


Carlos M. Villalón (Chair) 

Kathryn A. Cunningham

Noelle Anastasio

Lyn Daws

Catherine Marcinkiewcz

Anne Andrews

Kelly Berg

Lee Gilman